Prase and Pollucite Physical Properties

Prase

Pollucite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

2.64-2.692.86-2.94

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Not Available

None observed

1.7 Mohs Hardness

76.5-7

2 10

1.8 Chemical Composition

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Prase and Pollucite Chemical Formula

While comparing Prase and Pollucite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Prase and Pollucite chemical formula.

Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Compare Blue Gemstones

Prase Vs Rubellite

Prase Vs Sanidine

Prase Vs Sapphire

Prase and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prase and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Prase is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.